readme: better description

README.md

@@ -1,17 +1,22 @@
 # alacritty-config
 
-A simple Python script to simplify configuring my alacritty.
+A simple Python script to simplify configuring my alacritty. Also comes with a GUI.
 
 ## Installation
 
 You can install `alacritty-config` by cloning this repository and running  `make
 install`. By default, it will be installed in `/usr/local/bin`, but you can set a
-different `INSTALL_DIR` if you like.
+different `INSTALL_DIR` if you like. If you want the GUI as well, run `make gui`.
 
 Uninstall it using `make uninstall`.
 
 ## Usage
 
+Depending on your sensibilities, you might want to configure your terminal using the
+[CLI](#cli) or the [GUI](#gui).
+
+### CLI
+
 `alacritty-config` has three different modes: show, add, and delete.
 
 Calling the program without any arguments will dump your entire config: you’re in show
@@ -48,10 +53,10 @@ $ alacritty-config tabspaces '"delete"'
 # Set tabspaces to "delete", which won’t work
 ```
 
-## TODO
+### GUI
 
-I’m writing a GUI for the configuration currently, but it’s far from complete. The parts
-that are already wrapped should work, though!
+The GUI is somewhat more self-explanatory. You start it by running `alacritty-config-gui`.
+The basic unit of order is the tab, and there are expandable sections for you convenience.
 
 <hr/>